Oella vs Criodan the Blue

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Oella	Sylvan Watchers	Magic	Support	Legendary	Resist 75 Place: Dungeons
Criodan the Blue	Sylvan Watchers	Magic	Support	Epic	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Oella	60	6	21135	980	1189	110	15	50	50	0
Criodan the Blue	60	6	17835 -3300	1090 +110	1024 -165	99 -11	15	50	30 -20	15 +15

Oella	Flutter Fluster Formula: 4.5*ATK Attacks 1 enemy. Has a 80% chance of placing a 30% [Decrease SPD] debuff for 2 turns. This debuff cannot be resisted if Ultan of the Shell is on the same team. Decrease SPD 30%	Hand of Spring Formula: 0.3*TRG_HP Heals all allies by 30% of their MAX HP. Increases the duration of all ally buffs by 1 turn. Cooldown: 4	Morphosis Formula: 0.3*MAX_STAMINA Fills the Turn Meters of all allies by 30%. Also places a 50% [Increase RES] buff on all allies for 2 turns. Cooldown: 6 Increase RES	Untrammeled [P] Whenever an ally loses 15% or more of their MAX HP from a single hit, places a 15% [Continuous Heal] buff on that ally for 1 turn. Places a 15% [Continuous Heal] buff for 2 turns on that ally and then instantly activates it if Ultan of the Shell is on the same team. Can occur only once to an ally per turn. Continuous Heal 15%
Criodan the Blue	Frostbark Blade Formula: 1.2*ATK Attacks 1 enemy 3 times. Each hit has a 25% chance of placing a [Freeze] debuff for 1 turn. Freeze	Razor Hail Formula: 1.9*ATK Attacks all enemies 2 times. Each hit has a 45% chance of placing a [Freeze] debuff for 1 turn. Cooldown: 4 Freeze	Blessing of the Blue Formula: 0.15*MAX_STAMINA Places a 30% [Increase SPD] buff on all allies for 2 turns. Also fills the Turn Meters of all allies by 15%. Cooldown: 5 Increase SPD 30%	Snow Dancer [P] Formula: 0.05*MAX_STAMINA Fills this Champion’s Turn Meter by 5% for each [Freeze] debuff placed by this Champion.